Najma Begum :-She is the head of this family.She has two sons only.

◆Elder son:- Imtayaz Ahmed
His wife's name: Farida Begum
They have two child -a boy and a girl.
Boy's name: Aabir
Girl's name: Mehak

◆Younger son:- Feroz Ahmed
His wife's name:Tanjuma Akter
They also have two child- a girl and a boy
Girl's name:Saba
Boy's name:Akash

According to the age : Saba- Aabir-Akash-Mehak

That means Saba is elder amongst the cousins ,next is Aabir ,then Akash and at last it's Mehak.

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This chapter only for avoiding any kind of confusions in future chapters .I hope no one will be confuse now about the character's names or the sibling's age.